Antimicrobial Catheter Dressing with Slit Pad and Film

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Solution Overview

Problem

Current catheter dressing solutions fail to provide comprehensive antimicrobial protection, complete circumferential coverage, and fixation, leading to risks of catheter-related bloodstream infections (CRBSIs) and complications during dressing changes.

Innovation Solution

A multi-functional IV catheter dressing device that integrates antimicrobial properties, fluid handling capacity, and fixation functions, featuring a base, pad, and dressing film with a slit for 360-degree coverage, adhesive for secure attachment, and a spine for easy removal, allowing for complete circumferential protection and visibility of the catheter site.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a foam material containing antimicrobial agent is used to provide complete circumferential coverage, then antimicrobial protection is improved, but transparency for visual check is lost

Engineering Contradiction:

Improveantimicrobial protectionVSAvoidtransparency

Core Design Contradiction:

ReliabilityVSIllumination intensity

Solution Approach 1:

The patent combines the transparency of film dressings with the antimicrobial properties of CHG-impregnated materials by integrating both functions into a single multi-layer dressing structure, allowing visual inspection while maintaining antimicrobial protection

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The dressing uses composite materials including transparent film layers and CHG-impregnated absorbent layers, creating a multi-functional material that provides both transparency for visual check and antimicrobial protection through the CHG agent

Inventive Principle:

Principle #40Composite materials

2Reliability

If a separate film dressing is used to cover the insertion site, then coverage function is improved, but device complexity increases

Engineering Contradiction:

ImprovecoverageVSAvoidnumber of components

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the coverage function of film dressings with the antimicrobial function of CHG materials into a single integrated dressing device, eliminating the need for separate applications and reducing overall device complexity

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If a gel pad without slit is used for CHG application, then application simplicity is improved, but complete circumferential coverage is lost

Engineering Contradiction:

Improveapplication simplicityVSAvoidcircumferential coverage

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The dressing is segmented into multiple layers including CHG-impregnated absorbent layers arranged to provide complete circumferential coverage around the catheter, with the slit allowing the dressing to be applied over the existing catheter without removal

Inventive Principle:

Principle #1Segmentation

4Reliability

If adhesive is used to secure the dressing, then fixation is improved, but ease of removal deteriorates

Engineering Contradiction:

ImprovefixationVSAvoidease of removal

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The dressing is designed with separable layers including a release liner that facilitates easy removal, allowing the adhesive layer to be cleanly separated from the skin without causing trauma or difficulty during dressing changes

Inventive Principle:

Principle #1Segmentation

5Adaptability or versatility

If multiple separate devices are used for coverage and fixation, then functional completeness is improved, but ease of operation deteriorates

Engineering Contradiction:

Improvefunctional completenessVSAvoidease of use

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The dressing device is designed as a multi-functional universal product that combines coverage, antimicrobial protection, fluid handling, and fixation capabilities into a single integrated device, eliminating the need for multiple separate products and simplifying the dressing application process

Inventive Principle:

Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The device effectively reduces the incidence of CRBSIs by providing comprehensive antimicrobial protection, easy application and removal, and preventing catheter dislodgement during dressing changes, thereby enhancing patient safety and reducing healthcare costs.

Implementation Method 1

an adhesive disposed on the proximal surface of the dressing film

Methodology Applied

Scientific EffectAdhesive: Adhesive

Implementation Method 2

the pad has a slit extending from a perimeter of the pad to an aperture proximate to a center of the pad and an antimicrobial agent

Methodology Applied

Scientific EffectAntimicrobial action:

Data Source

PatentEP2964308B1All in one antimicrobial dressing for catheter coverage

Publication Date: 2019.09.25 ETHICON INC

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Figure 3a~3b

AI summary

We have disclosed dressing devices 10 that combine the functions of coverage of a catheter insertion site, fluid handling capacity for the puncture site of a catheter, and fixation of the catheter. More specifically, we have disclosed dressing devices comprising a base 20, a pad 30, and a dressing film 40, and the devices possess antimicrobial properties. We further disclose a method of making the disclosed dressing devices, a kit comprising the disclosed dressing devices and a catheter fastener means.